CVE-2026-61828
nixos/mysql : `services.mysql` is configured with insecure authentication by default when used with `mysql` or `percona-server`
Description
Nixpkgs is a collection of software packages that can be installed with the Nix package manager. Prior to the 25.11 and 26.05 channel fixes, the NixOS module for MySQL services.mysql initializes the MySQL database in a way that allows local users, such as unprivileged web or CGI processes on the same host, to log in as the root user without a password when the service is used with mysql or percona-server. This issue is fixed in the 25.11 and 26.05.
INFO
Published Date :
July 15, 2026, 4:16 p.m.
Last Modified :
July 15, 2026, 8:49 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Nixpkgs to channel fixes 25.11 or 26.05.
- Reconfigure MySQL services.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-61828.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-61828 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-61828
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-61828 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-61828 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 15, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-61828', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-15T16:29:37.462107Z'} -
New CVE Received by [email protected]
Jul. 15, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'NixOS', 'product': 'nixpkgs', 'versions': [{'status': 'affected', 'version': '< 25.11'}, {'status': 'affected', 'version': '>= 26.05-beta, < 26.05'}]}] Added Description Nixpkgs is a collection of software packages that can be installed with the Nix package manager. Prior to the 25.11 and 26.05 channel fixes, the NixOS module for MySQL services.mysql initializes the MySQL database in a way that allows local users, such as unprivileged web or CGI processes on the same host, to log in as the root user without a password when the service is used with mysql or percona-server. This issue is fixed in the 25.11 and 26.05. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-276 Added Reference https://github.com/NixOS/nixpkgs/commit/3f68d7ad2a6865ff8b4910d89f173d7258bad8dd Added Reference https://github.com/NixOS/nixpkgs/commit/4aed47116a8734922763cd8f477467b0a0bcd6d7 Added Reference https://github.com/NixOS/nixpkgs/commit/f8ee41468a7a8f9ed3a8cc7d017151c2ca6f90b5 Added Reference https://github.com/NixOS/nixpkgs/pull/534254 Added Reference https://github.com/NixOS/nixpkgs/pull/534482 Added Reference https://github.com/NixOS/nixpkgs/pull/534484 Added Reference https://github.com/NixOS/nixpkgs/security/advisories/GHSA-6qxx-6rg8-c4p8